Groundwork of the Metaphysics of Morals

What Is the Supreme Principle of Morality?
Few philosophical works have reshaped human thought as profoundly as Immanuel Kant’s Groundwork of the Metaphysics of Morals. Regarded as a foundational text in modern ethics, this powerful treatise investigates the nature of moral law, human freedom, and rational duty, establishing Kant’s most enduring idea: the Categorical Imperative.

In contrast to more subjective moral codes—such as the Golden Rule—Kant proposes a universal moral framework grounded not in emotion or desire, but in reason. He asks: Can the principles by which we act be applied universally? If not, they cannot be moral.

In this penetrating work, Kant:

• Defines the Categorical Imperative and contrasts it with hypothetical imperatives

• Explores the roles of autonomy, free will, and moral law in ethical behavior

• Warns against letting personal taste or emotion dictate right and wrong

• Offers a bold case for objective, rational principles as the true guide to moral action

• Examines the duties of rational beings and the nature of universal law

Whether you're a student of ethics, a lover of classic philosophy, or a seeker of moral clarity in a confusing world, this timeless classic continues to challenge and inspire. Groundwork of the Metaphysics of Morals stands alongside Plato’s Republic and Aristotle’s Nicomachean Ethics as one of the most influential works in moral philosophy ever written.

Perfect for students, scholars, or thoughtful readers, this edition is a must-have in every serious philosophy collection.

Immanuel Kant (1724-1804) was an 18th-century German philosopher from the Prussian city of Konigsberg. Kant was the last influential philosopher of modern Europe in the classic sequence of the theory of knowledge during the Enlightenment beginning with thinkers John Locke, George Berkeley, and David Hume. Kant created a new perspective in philosophy which had widespread influences on philosophy continuing through to the 21st century. He published important works on epistemology, as well as works relevant to religion, law, and history. One of his most prominent works is the Critique of Pure Reason, an investigation into the limitations and structure of reason itself. It encompasses an attack on traditional metaphysics and epistemology, and highlights Kant's own contribution to these areas. The other main works of his maturity are the Critique of Practical Reason, which concentrates on ethics, and the Critique of Judgment, which investigates aesthetics and teleology. Kant's thought was very influential in Germany during his lifetime, moving philosophy beyond the debate between the rationalists and empiricists. The philosophers Fichte, Schelling, Hegel and Schopenhauer each saw themselves as correcting and expanding the Kantian system, thus bringing about various forms of German idealism. Kant continues to be a major influence on philosophy, influencing both analytic and continental philosophy.